#include <unistd.h>
#include <stdio.h>

int main()
{
    char *arglist[3];
    pid_t pid;
    arglist[0] = "ls";
    arglist[1] = "-l";
    arglist[2] = NULL;
    pid = fork();
    if (pid == 0) {
        execvp("ls", arglist);
    }
    printf("*** program is over. bye\n");
    return 0;
}
